Item Type: Bluetooth Audio Transceiver Material: ABS Size: Approx. 70x35x15mm / 2.7x1.4x0.6in Chip Brand: Actions Chip Bluetooth Version: 5.0 Transmission Distance: Approx. 10m / 33ft Built in Polymer Lithium Battery: 300mAh (included) Function: Bluetooth transmitter receiver Bluetooth Name: ZF-365 Package List 1 x Bluetooth Audio Transceiver with Screen 1 x Manual 1 x 3.5mm Audio Cable 1 x USB to Type C Data Cable Please allow slight errors due to manual measurement. 1Bluetooth 5.0 Chip: Using the latest version of Bluetooth 5.0 chip, the distance is longer and the connection is more stable. 2Simple Appearance: Simple and elegant appearance, easy to operate with screen, classic style with white, 5 keys remote control. 3Power Supply: Built in 300mAh polymer lithium battery, continuous playback time up to 10 hours. 4Audio Transceiver: It is a Bluetooth audio receiver and a Bluetooth audio transmitter, with simple conversion and convenient operation. 5HiFi Stereo Surround: Give full play to the advantages of high end Bluetooth chip, create high quality sound quality.